The Multiversity #[nn]

In "Maps and Legends," the Batman of Earth-17 arrives on Earth-42 seeking the Cosmic Grail, only to find his counterpart shattered by an assault from the Legion of Sivanas. As the two Bats grapple with the mystery of the Grail and a cryptic comic left behind by Sivana, the fate of the multiverse begins to unravel—drawing in heroes from across the DC Universe, from Martian Manhunter to the Justice League, as forces long thought dead stir once more.

In the grim alternate history of Earth-10, where the Nazis triumphed thanks to an alien child raised as Overman, the legacy of the Freedom Fighters endures. Sixty years after the war, a defiant resistance led by the reemergent Uncle Sam and the cunning Dr. Sivana rallies the last free souls—among them the Martian, Leatherwing, and the enigmatic Lena—to strike back against the New Reichsmen.

In a world where comic books are gateways to reality, Ultra Comics stands as the last line of defense when a mind-bending invasion begins through the pages. With Ultra-Man, the Neighborhood Guard, Ultraa, and the Multi-Alien Ace Arn racing to contain the threat, the only hope lies in the hands of the readers themselves—because the only way to stop Intellectron is for them to close the book.